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ATTACHMENT 1 to WORK ORDER NO. 2 -RR PROFESSIONAL ENGINEERING SERVICES for the ROCKRIDGE SUBDIVISION SURGE PROTECTION PROJECT INTRODUCTION AND GENERAL OVERVIEW OF THE SURGE PROTECTION PROJECT Indian River County ("COUNTY") and Malcolm Pirnie, Inc. ("CONSULTANT") have entered into a Master Agreement through which the CONSULTANT via individual Work Orders, will prepare a preliminary design report, final design, estimate of probable construction costs, necessary construction drawings and specifications, permitting documents, and assist with bidding services and construction services for implementation of the stormwater system improvements for the Rockridge Subdivision Surge Protection Project. Through the Work Orders, the CONSULTANT will also assist the COUNTY in coordinating with FEMA regarding an anticipated Hazardous Mitigation Grant Program (HMGP) award and with the Florida Department of Community Affairs (DCA) regarding an existing Community Development Block Grant (CDBG). The CONSULTANT will also participate in at least one public meeting for the Project. The purpose of the Surge Protection Project is to protect the Rockridge Subdivision from hurricane storm surges from the Indian River Lagoon. Facilities may include sluice gates and/or flap gates on at least nine different existing storm drainage structures (headwalls), an inflatable/tilting weir arrangement at the canal adjacent to 14th Street, and a pump station arrangement with influent screens as needed at the canals adjacent to 16th Street. The single pump station location (at 16th Street on the former post office property and/or Indian River Boulevard right-of-way) assumes that the current configuration of the canals can be modified to develop a single continuous canal west of thel6th Street location. The current canal configuration includes a berm that will be considered for open cutting or culvert installation to join the two separate canals and thereby provide for uniform water flow. The COUNTY will be responsible for the coordination of activities to accomplish this "canal joining" work as a separate and distinct activity. It is intended that the pump station influent screens and flow channel be designed so that the influent screens will be operated continuously to remove trash and debris from the canal water before the water discharges into the Indian River Lagoon. The project also includes the installation of "Jersey" curb (or other appropriate design) along Indian River Boulevard to prevent floodwaters from crossing west across the highway below elevation 6.5 NGVD. Work will also include coordination with the City of Vero Beach and the Florida Department of Transportation. The project limits along Indian River Boulevard are just south of 12th Street to approximately 20th Street. Work Order No. 2 -RR is for a Kickoff Meeting and preparation of a Preliminary Engineering Report that will confirm the above features or recommend viable alternatives that qualify for the above noted funding sources. These items are discussed in more detail below. 2 C:\Documents and Settings\hurlburt\Local Settings\Temporary Internet Files\01-1<16MRevised (PDR) Work Order H2 -RR - 4-24- 06.doc